My little cat sleeps _______ the day , but ______night he begins to work.

A. at , at      B. on, in   C. on, at   D.during, at

  My little cat sleeps _________ the day, but _________ night, he begins to work.

       A. at; at           B. on; in        C. on; at           D. during; at

My little cat sleeps ______ the day, but ______ night he begins to work.

1. A.
   at; at
2. B.
   on; in
3. C.
   on; at
4. D.
   during; at